I am an electronics beginner and I created a small little circuit, just a battery a resistor and a led, then to ground. This is the circuit:
Now I have a few questions about it. I know voltage is the different of electrical charge between two points, so I measured that difference:
Point A to B: 3.27V
Point B to C: 1.82V
- First question:
Does that mean that the actual voltage of:
Point A: 5V
Point B: 1.73V
Point C: 0V?
So I am not sure if my calculations of voltage are correct. I also have this other questions:
Does the resistor have to be before the component I am trying to protect, like an LED. I have seen people place it after, but wouldn't that give a full 5V to the led or component?
Ground has a neutral charge right? so why do electrons want to travel so badly to a point that has no electric charge?